lvm2/fate-31841-03_tests-new-test-suite-of-fsadm-for-btrfs.patch

From 24ec9af4513890b2ab1a6f3683e8aba007a3c983 Mon Sep 17 00:00:00 2001
From: Heming Zhao <heming.zhao@suse.com>
Date: Wed, 30 Jun 2021 18:41:42 +0800
Subject: [PATCH] tests: new test suite of fsadm for btrfs

refer legacy patche:
- Ondrej Kozina <okozina@redhat.com>
  https://listman.redhat.com/archives/lvm-devel/2012-November/msg00055.html

Signed-off-by: Heming Zhao <heming.zhao@suse.com>

2023-09-08:
LVs should be resized to 64M after each test.

Signed-off-by: Su Yue <glass.su@suse.com>
---
 test/shell/fsadm-btrfs.sh | 176 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 176 insertions(+)
 create mode 100644 test/shell/fsadm-btrfs.sh

diff --git a/test/shell/fsadm-btrfs.sh b/test/shell/fsadm-btrfs.sh
new file mode 100644
index 000000000000..c1b65036efb2
--- /dev/null
+++ b/test/shell/fsadm-btrfs.sh
@@ -0,0 +1,176 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+test_description='Exercise fsadm btrfs resize'
+
+. lib/inittest
+
+aux prepare_vg 1 1024
+
+# set to "skip" to avoid testing given fs and test warning result
+# i.e. check_btrfs=skip
+check_btrfs=
+
+which mkfs.btrfs || check_btrfs=${check_btrfs:-mkfs.btrfs}
+which btrfs	 || check_btrfs=${check_btrfs:-btrfs}
+
+vg_lv=$vg/$lv1
+vg_lv2=$vg/${lv1}bar
+vg_lv3=$vg/${lv1}bar2
+dev_vg_lv="$DM_DEV_DIR/$vg_lv"
+dev_vg_lv2="$DM_DEV_DIR/$vg_lv2"
+dev_vg_lv3="$DM_DEV_DIR/$vg_lv3"
+mount_dir="mnt"
+mount_space_dir="mnt space dir"
+# for recursive call
+export LVM_BINARY=$(which lvm)
+
+test ! -d "$mount_dir" && mkdir "$mount_dir"
+test ! -d "$mount_space_dir" && mkdir "$mount_space_dir"
+
+cleanup_mounted_and_teardown()
+{
+	umount "$mount_dir" || true
+	umount "$mount_space_dir" || true
+	aux teardown
+}
+
+reset_lvs()
+{
+	# Since we call mkfs.btrfs with '-f', lvreduce to 64M is enough
+	lvreduce -L64M -nf $vg_lv || true
+	lvreduce -L64M -nf $vg_lv2 || true
+	lvreduce -L64M -nf $vg_lv3 || true
+}
+
+check_missing_btrfs()
+{
+	eval local t=$check_btrfs
+	test -z "$t" && return 0
+	test "$t" = skip && return 1
+	# trick for warning test
+	echo "WARNING: fsadm test skipped btrfs tests, $t tool is missing"
+	return 1
+}
+
+fscheck_btrfs() {
+	btrfsck "$1"
+}
+scrub_btrfs() {
+	btrfs scrub start -B "$1"
+}
+
+# btrfs minimal size calculation is complex, we use 64M here.
+lvcreate -n $lv1 -L64M $vg
+lvcreate -n ${lv1}bar -L64M $vg
+lvcreate -n ${lv1}bar2 -L64M $vg
+trap 'cleanup_mounted_and_teardown' EXIT
+
+single_device_test() {
+	mkfs.btrfs -m single "$dev_vg_lv"
+	mkfs.btrfs -m single "$dev_vg_lv2"
+
+	# kernel limits 256 MB as minimal btrfs resizable size
+	# you can grow fs from 30MB->256MB
+	# but you can't grow from 30MB->180MB
+	fsadm --lvresize resize $vg_lv 256M
+	fsadm --lvresize resize $vg_lv2 256M
+
+	not fsadm -y --lvresize resize $vg_lv 200M
+	lvresize -L+10M -r $vg_lv
+	lvreduce -L256M -r $vg_lv
+	fscheck_btrfs $dev_vg_lv
+
+	mount "$dev_vg_lv" "$mount_dir"
+	mount "$dev_vg_lv2" "$mount_space_dir"
+
+	not fsadm -y --lvresize resize $vg_lv 200M
+	lvresize -L+10M -r $vg_lv
+	lvreduce -L256M -r $vg_lv
+	scrub_btrfs $dev_vg_lv
+	umount "$mount_dir"
+
+	not fsadm -y --lvresize resize $vg_lv2 200M
+	lvresize -L+10M -r $vg_lv2
+	lvreduce -L256M -r $vg_lv2
+	scrub_btrfs $dev_vg_lv2
+	umount "$mount_space_dir"
+}
+
+multiple_devices_test() {
+	mkfs.btrfs -m single -d single -f "$dev_vg_lv" "$dev_vg_lv2" "$dev_vg_lv3"
+
+	fsadm -y --lvresize resize $vg_lv 256M
+	fsadm -y --lvresize resize $vg_lv2 256M
+	fsadm -y --lvresize resize $vg_lv3 256M
+
+	# check if fsadm is able to get/resize btrfs on
+	# the right device
+	lvresize -L+150M $vg_lv
+	fsadm -y resize $vg_lv 300M
+	# no space to extend, so failed
+	not fsadm -y resize $vg_lv2 300M
+	not fsadm -y resize $vg_lv3 300M
+	lvreduce -y -L256M -r $vg_lv
+
+	lvresize -L+150M $vg_lv2
+	fsadm -y resize $vg_lv2 300M
+	not fsadm -y resize $vg_lv3 300M
+	not fsadm -y resize $vg_lv 300M
+	lvreduce -y -L256M -r $vg_lv2
+
+	lvresize -L+150M $vg_lv3
+	fsadm -y resize $vg_lv3 300M
+	not fsadm -y resize $vg_lv2 300M
+	not fsadm -y resize $vg_lv 300M
+	lvreduce -y -L256M -r $vg_lv3
+	fscheck_btrfs $dev_vg_lv
+
+	# repeat with mounted fs
+	mount "$dev_vg_lv" "$mount_dir"
+	mount "$dev_vg_lv2" "$mount_space_dir"
+
+	lvresize -L300M $vg_lv
+	fsadm -y resize $vg_lv 300M
+	not fsadm -y resize $vg_lv2 300M
+	not fsadm -y resize $vg_lv3 300M
+	lvreduce -y -L256M -r $vg_lv
+
+	lvresize -L300M $vg_lv2
+	fsadm -y resize $vg_lv2 300M
+	not fsadm -y resize $vg_lv3 300M
+	not fsadm -y resize $vg_lv 300M
+	lvreduce -y -L256M -r $vg_lv2
+
+	lvresize -L300M $vg_lv3
+	fsadm -y resize $vg_lv3 300M
+	not fsadm -y resize $vg_lv2 300M
+	not fsadm -y resize $vg_lv 300M
+	lvreduce -y -L256M -r $vg_lv3
+
+	scrub_btrfs $dev_vg_lv
+	umount "$mount_dir"
+	umount "$mount_space_dir"
+
+	lvresize -nf -L300M $vg_lv
+	lvresize -nf -L300M $vg_lv2
+}
+
+if check_missing_btrfs; then
+
+	single_device_test
+	# after each test, reset_lv_size should be called to make sure
+	# all lvs are in same state/size.
+	reset_lvs
+	multiple_devices_test
+fi
+
+vgremove -ff $vg
-- 
2.35.3